Have they died? I pretty much think so, they haven't been updating their PRs in a while. It would be better if they just let people know they have stopped it or whatever is going one instead of leaving people to guess.
One of my domains changed a few months ago so they are still being updated it seems, there is usually only a update every 3 or 4 months anyway
I know I don't care about PR anymore - as its irrelevant, social media helps you rank higher now, along with backlinks. PR doesn't matter for search like its used to - and its only good if you're trying to sell links to someone.
